Generation of exact solutions of Fridman equations leading to Cardy–Verlinde formula by Darboux transformation
It is considered a possibility of generation of exact solutions for Friedman equations by Darboux transformation, for which Cardy — Verlinde formula is valid. Two modifications of Darboux transformation are offered, which let generate such solutions. Exact solutions are obtained, for which Cardy — Verlinde formula is valid ...
New classes of exact solutions and consistent models of cosmological evolution
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Astashenok, A. V., Yurov, A. V., Yaparova, A. V.
Einstein — Friedman equations, scalar field, Darboux transformation